The Marines identified the deceased as Lance Cpl. Riley S. Kuznia. A Minnesota woman, Markelle Kuznia of Karlstad, told The Associated Press he was her 20-year-old son. She said the military has not provided details of his death.

Kuznia says her son joined the Marines because "he felt it was his duty."

Col. Don Tomich, commanding officer of the Marine Barracks, said in a statement that the command's priority was to care for the Marine's family and friends "during this challenging time."

"We are truly saddened by this terrible loss," Tomich said in a statement. "Riley was a highly driven and goal-oriented Marine whose positive attitude set the example here at the Barracks. Our thoughts and prayers are with Riley's family and friends, and our priority continues to be taking care of them during this tragic time."

Kuznia's decorations include the Global War on Terrorism Service Medal and the National Defense Service Medal.